2118257263 has 2 divisors, whose sum is σ = 2118257264. Its totient is φ = 2118257262.

The previous prime is 2118257261. The next prime is 2118257347. The reversal of 2118257263 is 3627528112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2118257263 - 2¹ = 2118257261 is a prime.

Together with 2118257261, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2118257261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1059128631 + 1059128632.

It is an arithmetic number, because the mean of its divisors is an integer number (1059128632).

Almost surely, 2^2118257263 is an apocalyptic number.

2118257263 is a deficient number, since it is larger than the sum of its proper divisors (1).

2118257263 is an equidigital number, since it uses as much as digits as its factorization.

2118257263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40320, while the sum is 37.

The square root of 2118257263 is about 46024.5289275186. The cubic root of 2118257263 is about 1284.2795525458.

The spelling of 2118257263 in words is "two billion, one hundred eighteen million, two hundred fifty-seven thousand, two hundred sixty-three".